Impatiens glandulifera (Balsaminaceae) - Pollination durch Bombus spec.

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Formal Metadata

Title
Impatiens glandulifera (Balsaminaceae) - Pollination durch Bombus spec.
Alternative Title
Impatiens glandulifera (Balsaminaceae) - Pollination by Bombus spec.
Author
Brustkern, Paul
License
No Open Access License:
German copyright law applies. This film may be used for your own use but it may not be distributed via the internet or passed on to external parties.
DOI
IWF Signature
E 2276
Publisher
IWF (Göttingen)
Release Date
1976
Language
Silent film
Producer
Paul Brustkern
Production Year
1972

Technical Metadata

IWF Technical Data
Film, 16 mm, 30 m ; F, 3 min

Content Metadata

Subject Area
Abstract
Springkraut; Hummel. Bau der Blüte mit der eigenartigen Genitalsäule; Entfaltungsphasen der Einzelblüte: rhythmisches Ausschieben des Pollens aus den Antheren, Abwerfen des Andrözeums, Freiwerden der nun reifenden Narbe; Funktion der Einrichtung, die eine Fremdbestäubung sichert: Bestäubung durch Hummeln.
The film demonstrates the unusual manner of pollination within the protandrous blossom of Impatiens glandulifera, a red flowering Touch-me-not. At first the structure of the flower and of its peculiar sort of gynostegium, the unit gynaeceum and anroeceum, and the floral stages of the single flower are explained by quick motion pictures. After the rhythmical emptying of the pollen grains out of the anthers the totality of the stamens is separated from the base of the gynostegium. By this the ripening stigma becomes free for pollination. In the following the function of this construction, which guarantees xenogamic pollination, is demonstrated by normal motion outdoor pictures. In close-up pictures is to be seen, how the pollination takes place by bumble-bees which are well accomodated relative to their tallness.
Keywords
Hummel
Bombus
drüsiges Springkraut
Springkraut
Impatiens glandulifera
Pollination
pollination
Impatiens glandulifera
touch-me-not
Himalayan balsam
Bombus
bumblebee
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Timings

  278 ms - page object

Version

AV-Portal 3.9.1 (0da88e96ae8dbbf323d1005dc12c7aa41dfc5a31)